CN105429803B - Quadratic Imaginary loop fault localization method based on fault zone Difference formula reasoning - Google Patents
Quadratic Imaginary loop fault localization method based on fault zone Difference formula reasoning Download PDFInfo
- Publication number
- CN105429803B CN105429803B CN201510923008.XA CN201510923008A CN105429803B CN 105429803 B CN105429803 B CN 105429803B CN 201510923008 A CN201510923008 A CN 201510923008A CN 105429803 B CN105429803 B CN 105429803B
- Authority
- CN
- China
- Prior art keywords
- link
- virtual link
- fault
- physical
- virtual
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0677—Localisation of faults
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a kind of Quadratic Imaginary loop fault localization methods based on fault zone Difference formula reasoning, the relationship maps for carrying out virtual link and physical link modeling and virtual link and physical link to the transformer station process layer network connection of " net is adopted net and jumped " or " point is adopted net and jumped " first configure；It is theoretical using digraph again, transformer station process layer network is connected and carries out Model Abstraction, is abstracted and obtains directed connected graph；The communication link exception information issued then according to receiving side, when receiving virtual link and breaking down, startup separator diagnoses positioning system, by the on off operating mode for judging virtual link, continuous iteration carry logical virtual link, disconnected virtual link physical link difference set, orient the physical link failure point position for causing virtual link to break down.It realizes to the monitoring of intelligent substation secondary void loop fault, judgement, diagnosis and fault location, assists operation maintenance personnel quickly to find failure, debugging, restore normal, guarantee power grid security reliability service.
Description
Technical field
The present invention relates to a kind of Fault Locating Methods, more particularly to a kind of two based on fault zone Difference formula reasoning
Secondary void loop fault localization method, belongs to power system automation technology field.
Background technique
The secondary circuit of intelligent substation is no longer the pure circuit structure constituted with cable transmission single signal, but with light
Network structure based on fine digital communication, simultaneous transmission multiple signals in each optical fiber can not be again from external direct
Physical connection goes to analyze entire circuit, is instead then secondary virtual circuit.How secondary circuit is monitored, and
When circuit is broken down, how quick fault point, be urgent problem in intelligent substation process of construction.
Currently, the function for monitoring of intelligent substation void circuit communication link is completed in recipient, it is different in communication link
Chang Shi, recipient will be unable to normally receive data, to judge that exception has occurred in communication link.But actually recipient without
Method directly judges it is which link of link there is a problem, because of sender's optical fiber interface, communication link or recipient's light
Fine interface is likely to be abnormal.Further, since the complexity of communication link, can often generate a large amount of warning messages；These reports
Text is all based on what each device itself judgement was made, and operation maintenance personnel is difficult quickly in face of the alarm of the local property of these dispersions
It is accurately positioned fault point and takes measures as early as possible.Therefore, it is necessary to study can quick pinpoint intelligent substation secondary void
Loop fault localization method.
Summary of the invention
It is a primary object of the present invention to be overcome deficiency in the prior art, provide one kind and forced based on fault zone difference
The Quadratic Imaginary loop fault localization method of nearly reasoning is, it can be achieved that the monitoring of intelligent substation secondary void loop fault, judging, examining
Disconnected and fault location, auxiliary operation maintenance personnel quickly finds that failure, quickly solution failure, quick recovery system are normal, to guarantee
Power grid security reliability service.
In order to achieve the above object, the technical scheme adopted by the invention is that：
A kind of Quadratic Imaginary loop fault localization method based on fault zone Difference formula reasoning, includes the following steps：
1) information configuration before fault location；
Virtual link and object are carried out including the transformer station process layer network connection to " net is adopted net and jumped " or " point is adopted net and jumped "
Manage the relationship maps configuration of link modeling and virtual link and physical link；
2) the physical link failure point for causing virtual link to break down is oriented；
Using digraph theory, transformer station process layer network is connected and carries out Model Abstraction, is abstracted and obtain oriented company
Logical to scheme, the directed circuit in directed connected graph is the physical link that virtual link is carried；The communication chain issued according to receiving side
Road exception information, when receiving virtual link and breaking down, startup separator diagnoses positioning system, by the on-off for judging virtual link
State, continuous iteration carry logical virtual link, disconnected virtual link physical link difference set, forced based on directed circuit fault zone difference
The physical link failure point position for causing virtual link to break down is oriented in nearly reasoning.
The present invention is further arranged to：Virtual link and the physical link modeling of the step 1) include device and interchanger
Physical port and device port are connect with switch port, switch port and switch port cascade.
The present invention is further arranged to：The relationship maps configuration of the virtual link and physical link of the step 1) includes empty end
The associated ports that son connection defines the port configuration of internal signal in the receiving end and virtual terminator outputs signal configure.
The present invention is further arranged to：Information configuration before the step 1) fault location, specifically,
Process-level network topological structure and mistake 1-1) are parsed from the SCD file of transformer station process layer mesh information
Journey layer GOOSE, SV information void circuit, Kernel-based methods layer network topological structure construct network link reality circuit object and its connection mould
Type, the Kernel-based methods information void circuit layer GOOSE, SV construct virtual link and empty circuit object and its link model；
1-2) according to constructed network link reality circuit object and its link model and virtual link and empty circuit object and
Its link model realizes empty circuit and the mapping of process-level network link association, and GOOSE, SV data information collection pass through between generating means
The physical pathway crossed.
The present invention is further arranged to：The step 2) orients the physical link failure for causing virtual link to break down
Point, specifically,
The connection of transformer station process layer network 2-1) is abstracted into a directed connected graph, the vertex of the directed connected graph
Collection is combined into the transposition port and switch port set that all empty circuits are related to, and the line set of the directed connected graph is all mistakes
Journey layer network connecting line set；
The physical link that each virtual link is carried is expressed as to the dress for outputing mapping associated by signal of virtual terminator
One directed path of the associated device physical port mapped of the internal signal for setting physical port to receiving end, available physical end
Mouth sequence P1, P2, P3 ... ... and, Px } real physical links for carrying virtual link Vx are identified, wherein x is constant；
2-2) assume that the physical port sequence for having virtual link Vi to be passed through is { P1, P2, P3 ... ..., Pi }, there is void
The physical port sequence that link Vk is passed through is { P1, P2, P3 ... ..., Pk }, wherein i<k；
If virtual link Vi state is normal, and virtual link Vk state interrupt, then the physical link institute passed through according to Vi, Vk is right
The difference set for the physical port sequence answered can tentatively conclude fault point between { Pi ... ..., Pk }；
2-3) searched in fault diagnosis positioning system physical port sequence that another virtual link Vj is passed through be P1,
P2, P3 ... ..., Pi ... ..., Pj }, carry out further fault point in conjunction with the state of virtual link Vj；
If virtual link Vj state is normal, range can be further reduced and conclude fault point at { Pj ... ..., Pk }
Between, and the localization of fault that virtual link Vk will be caused to interrupt is to complete fault location between { Pj ... ..., Pk }；
If virtual link Vj state interrupt, deducibility between { Pi ... ..., Pj } there are fault point, so as to
The reason of judgement causes virtual link Vk to interrupt be due to the fault point between { Pi ... ..., Pj } caused by, and under entering
One step；
2-4) continue to repeat step 3) between { Pi ... ..., Pj }, gradually reduces fault coverage, Step wise approximation
Fault point, until completing fault location, will cause virtual link Vk interrupt localization of fault be Pi ... ...,
Pn } between, wherein i<n≤j.
Compared with prior art, the invention has the advantages that：
1, it under the intelligent substation environment of " net is adopted net and jumped " or " point is adopted net and jumped ", realizes virtual link and physical link is built
Mould provides model basis for the fault diagnosis positioning in empty circuit.
2, by being associated mapping configuration to virtual link and physical link, and it is theoretical using digraph, realize Quadratic Imaginary
The digraph of loop physical link indicates, diagnoses positioning analysis for empty loop fault and provides mathematics supporting method.
3, end is judged as starting point using virtual link state, continuous iteration carries the actual physics chain of logical virtual link, disconnected virtual link
The difference set on road finds fault zone based on the method for Difference formula reasoning, reduces the range of fault location, obtains causing empty chain
The position of the real physical links of road failure.
4, by iterating, Step wise approximation is, it can be achieved that the quick accurate fixed of intelligent substation secondary void loop fault
Position, the auxiliary fast quick-recovery substation of operation maintenance personnel is normal, to guarantee power grid security reliability service.
Above content is only the general introduction of technical solution of the present invention, in order to better understand technological means of the invention, under
In conjunction with attached drawing, the invention will be further described in face.
Detailed description of the invention
Fig. 1 is the flow chart of Fault Locating Method of the present invention；
Fig. 2 is the example schematic of Fault Locating Method of the present invention.
Specific embodiment
With reference to the accompanying drawings of the specification, the present invention is further illustrated.
As shown in Figure 1, a kind of Quadratic Imaginary loop fault localization method based on fault zone Difference formula reasoning, including with
Lower step：
1) information configuration before fault location；
Virtual link and object are carried out including the transformer station process layer network connection to " net is adopted net and jumped " or " point is adopted net and jumped "
Manage the relationship maps configuration of link modeling and virtual link and physical link；Wherein, virtual link and physical link modeling include dress
Set and the physical port of interchanger and device port connect with switch port, the cascade of switch port and switch port；
The relationship maps of virtual link and physical link configuration, according to Q/GDW 1396-2012《61850 engineering relay protection application of IEC
Model》, virtual terminator is connected to the port configuration that internal signal is defined in the intAddr of receiving end, but for virtual link and physics
The mapping of link, it is also necessary to which relationship maps virtual terminator outputs the associated ports of signal.
As shown in Figure 1, carrying out the Quadratic Imaginary loop fault positioning based on the Difference formula reasoning of directed circuit fault zone
Before, following information configuration is first carried out, specifically,
Process-level network topological structure and mistake 1-1) are parsed from the SCD file of transformer station process layer mesh information
Journey layer GOOSE, SV information void circuit, Kernel-based methods layer network topological structure construct network link reality circuit object and its connection mould
Type, the Kernel-based methods information void circuit layer GOOSE, SV construct virtual link and empty circuit object and its link model；
1-2) according to constructed network link reality circuit object and its link model and virtual link and empty circuit object and
Its link model realizes empty circuit and the mapping of process-level network link association, and GOOSE, SV data information collection pass through between generating means
The physical pathway crossed.
2) the physical link failure point for causing virtual link to break down is oriented；
Using digraph theory, transformer station process layer network is connected and carries out Model Abstraction, is abstracted and obtain oriented company
Logical to scheme, the directed circuit in directed connected graph is the physical link that virtual link is carried；The communication chain issued according to receiving side
Road exception information, when receiving virtual link and breaking down, startup separator diagnoses positioning system, by the on-off for judging virtual link
State, continuous iteration carry logical virtual link, disconnected virtual link physical link difference set, forced based on directed circuit fault zone difference
The physical link failure point position for causing virtual link to break down is oriented in nearly reasoning.
It is described to orient the physical link failure point for causing virtual link to break down, specifically,
The connection of transformer station process layer network 2-1) is abstracted into a directed connected graph, the vertex of the directed connected graph
Collection is combined into the transposition port and switch port set that all empty circuits are related to, and the line set of the directed connected graph is all mistakes
Journey layer network connecting line set；
The physical link that each virtual link is carried is expressed as to the dress for outputing mapping associated by signal of virtual terminator
One directed path of the associated device physical port mapped of the internal signal for setting physical port to receiving end, available physical end
Mouth sequence P1, P2, P3 ... ... and, Px } real physical links for carrying virtual link Vx are identified, wherein x is constant；
2-2) assume that the physical port sequence for having virtual link Vi to be passed through is { P1, P2, P3 ... ..., Pi }, there is void
The physical port sequence that link Vk is passed through is { P1, P2, P3 ... ..., Pk }, wherein i<k；
If virtual link Vi state is normal, and virtual link Vk state interrupt, then the physical link institute passed through according to Vi, Vk is right
The difference set for the physical port sequence answered can tentatively conclude fault point between { Pi ... ..., Pk }；
2-3) searched in fault diagnosis positioning system physical port sequence that another virtual link Vj is passed through be P1,
P2, P3 ... ..., Pi ... ..., Pj }, carry out further fault point in conjunction with the state of virtual link Vj；
If virtual link Vj state is normal, range can be further reduced and conclude fault point at { Pj ... ..., Pk }
Between, and the localization of fault that virtual link Vk will be caused to interrupt is to complete fault location between { Pj ... ..., Pk }；
If virtual link Vj state interrupt, deducibility between { Pi ... ..., Pj } there are fault point, so as to
The reason of judgement causes virtual link Vk to interrupt be due to the fault point between { Pi ... ..., Pj } caused by, and under entering
One step；
2-4) continue to repeat step 3) between { Pi ... ..., Pj }, gradually reduces fault coverage, Step wise approximation
Fault point, until completing fault location, will cause virtual link Vk interrupt localization of fault be Pi ... ...,
Pn } between, wherein i<n≤j.
As shown in Fig. 2, the Quadratic Imaginary loop fault based on fault zone Difference formula reasoning provided through the invention is fixed
Position method, can quickly be accurately positioned out fault coverage shown in figure.
Basic principles and main features and advantage of the invention have been shown and described above.The technical staff of the industry should
Understand, the present invention is not limited to the above embodiments, and the above embodiments and description only describe originals of the invention
Reason, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes and improvements
It all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent circle
It is fixed.
Claims (5)
1. a kind of Quadratic Imaginary loop fault localization method based on fault zone Difference formula reasoning, which is characterized in that including with
Lower step：
1) information configuration before fault location；
Virtual link and physics chain are carried out including the transformer station process layer network connection to " net is adopted net and jumped " or " point is adopted net and jumped "
Road modeling and the relationship maps configuration of virtual link and physical link；
2) the physical link failure point for causing virtual link to break down is oriented；
Using digraph theory, transformer station process layer network is connected and carries out Model Abstraction, is abstracted and obtain directed connected graph,
Directed circuit in directed connected graph is the physical link that virtual link is carried；The communication link issued according to receiving side is abnormal
Information, when receiving virtual link and breaking down, startup separator diagnoses positioning system, by judging the on off operating mode of virtual link,
Continuous iteration carry logical virtual link, disconnected virtual link physical link difference set, pushed away based on directed circuit fault zone Difference formula
Reason, orients the physical link failure point position for causing virtual link to break down.
2. the Quadratic Imaginary loop fault localization method according to claim 1 based on fault zone Difference formula reasoning,
It is characterized in that：Virtual link and the physical link modeling of the step 1) include the physical port and device of device and interchanger
Port is connect with switch port, switch port and switch port cascade.
3. the Quadratic Imaginary loop fault localization method according to claim 1 based on fault zone Difference formula reasoning,
It is characterized in that：The relationship maps configuration of the virtual link and physical link of the step 1) includes that virtual terminator connection is fixed in the receiving end
The port configuration of justice internal signal and virtual terminator output the associated ports configuration of signal.
4. the Quadratic Imaginary loop fault localization method according to claim 1 based on fault zone Difference formula reasoning,
It is characterized in that：Information configuration before the step 1) fault location, specifically,
Process-level network topological structure and process layer 1-1) are parsed from the SCD file of transformer station process layer mesh information
GOOSE, SV information void circuit, Kernel-based methods layer network topological structure construct network link reality circuit object and its link model,
The Kernel-based methods information void circuit layer GOOSE, SV constructs virtual link and empty circuit object and its link model；
1-2) according to constructed network link reality circuit object and its link model and virtual link and empty circuit object and its company
Model is connect, realizes empty circuit and the mapping of process-level network link association, GOOSE, SV data information collection pass through between generating means
Physical pathway.
5. the Quadratic Imaginary loop fault localization method according to claim 1 based on fault zone Difference formula reasoning,
It is characterized in that：The step 2) orients the physical link failure point for causing virtual link to break down, specifically,
The connection of transformer station process layer network 2-1) is abstracted into a directed connected graph, the vertex set of the directed connected graph
The transposition port being related to for all empty circuits and switch port set, the line set of the directed connected graph are all process layers
Network connection set；
The physical link that each virtual link is carried is expressed as to the rig for outputing mapping associated by signal of virtual terminator
One directed path of the associated device physical port mapped of the internal signal for managing port to receiving end, available physical port sequence
Column P1, P2, P3 ... ... and, Px } real physical links for carrying virtual link Vx are identified, wherein x is constant；
2-2) assume that the physical port sequence for having virtual link Vi to be passed through is { P1, P2, P3 ... ..., Pi }, there is virtual link
The physical port sequence that Vk is passed through is { P1, P2, P3 ... ..., Pk }, wherein i<k；
If virtual link Vi state is normal, and virtual link Vk state interrupt, then according to corresponding to the physical link that Vi, Vk pass through
The difference set of physical port sequence can tentatively conclude fault point between { Pi ... ..., Pk }；
2-3) searched in fault diagnosis positioning system physical port sequence that another virtual link Vj is passed through be P1, P2,
P3 ... ..., Pi ... ..., Pj }, carry out further fault point in conjunction with the state of virtual link Vj；
If virtual link Vj state is normal, range can be further reduced and conclude fault point { Pj ... ..., Pk } it
Between, and the localization of fault that virtual link Vk will be caused to interrupt is to complete fault location between { Pj ... ..., Pk }；
If virtual link Vj state interrupt, there are fault points between { Pi ... ..., Pj } for deducibility, to can determine whether
The reason of causing virtual link Vk to interrupt be due to the fault point between { Pi ... ..., Pj } caused by, and enter next
Step；
2-4) continue to repeat step 3) between { Pi ... ..., Pj }, gradually reduces fault coverage, Step wise approximation failure
Point, until completing fault location, the localization of fault that virtual link Vk will be caused to interrupt be { Pi ... ..., Pn } it
Between, wherein i<n≤j.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510923008.XA CN105429803B (en) | 2015-12-14 | 2015-12-14 | Quadratic Imaginary loop fault localization method based on fault zone Difference formula reasoning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510923008.XA CN105429803B (en) | 2015-12-14 | 2015-12-14 | Quadratic Imaginary loop fault localization method based on fault zone Difference formula reasoning |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105429803A CN105429803A (en) | 2016-03-23 |
| CN105429803B true CN105429803B (en) | 2018-11-23 |
Family
ID=55507754
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510923008.XA Active CN105429803B (en) | 2015-12-14 | 2015-12-14 | Quadratic Imaginary loop fault localization method based on fault zone Difference formula reasoning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105429803B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680568A (en) * | 2016-04-19 | 2016-06-15 | 南京国电南自电网自动化有限公司 | Automatic mapping monitoring system and method of intelligent substation secondary virtual loop |
| CN106787189A (en) * | 2016-12-21 | 2017-05-31 | 北京博维亚讯技术有限公司 | Intelligent substation method for visualizing and system |
| CN106850271B (en) * | 2016-12-30 | 2020-07-28 | 国网天津市电力公司 | Power distribution master station and terminal communication network fault studying and judging method |
| CN108551401B (en) * | 2018-04-09 | 2021-01-05 | 贵州电网有限责任公司 | Virtual-real loop correlation mapping and diagnosis method of virtual-real diagnosis system of intelligent substation |
| CN110224894B (en) * | 2019-06-18 | 2021-01-05 | 国网四川省电力公司内江供电公司 | Intelligent substation process level network monitoring management system |
| CN111884715A (en) * | 2020-06-08 | 2020-11-03 | 国网山东省电力公司建设公司 | Fault positioning method and device for optical circuit of secondary system of transformer substation |
| CN113225764B (en) * | 2021-07-08 | 2021-11-09 | 景网技术有限公司 | Offline smart city front-end equipment fault reason feedback and prejudgment method and system |
| CN113722883B (en) * | 2021-07-26 | 2024-05-14 | 国网河北省电力有限公司石家庄供电分公司 | Intelligent substation secondary circuit fault positioning method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102565682A (en) * | 2010-12-14 | 2012-07-11 | 苏州工业园区谱芯科技有限公司 | Method for positioning fault testing vectors on basis of bisection method |
| CN102967800A (en) * | 2012-12-10 | 2013-03-13 | 辽宁省电力有限公司沈阳供电公司 | Method and device for positioning single-phase ground fault section of power distribution network based on transient signal prony algorithm |
| CN103199617A (en) * | 2012-01-05 | 2013-07-10 | 山东电力工程咨询院有限公司 | Representing method of corresponding relationship between virtual circuits and physical ports in secondary circuit graph |
| CN104917293A (en) * | 2015-05-19 | 2015-09-16 | 中国南方电网有限责任公司 | Topological mapping method for secondary virtual and physical links of intelligent substation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2302477A1 (en) * | 2009-09-25 | 2011-03-30 | ABB Research Ltd. | Reliability calculation for substation automation systems |
-
2015
- 2015-12-14 CN CN201510923008.XA patent/CN105429803B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102565682A (en) * | 2010-12-14 | 2012-07-11 | 苏州工业园区谱芯科技有限公司 | Method for positioning fault testing vectors on basis of bisection method |
| CN103199617A (en) * | 2012-01-05 | 2013-07-10 | 山东电力工程咨询院有限公司 | Representing method of corresponding relationship between virtual circuits and physical ports in secondary circuit graph |
| CN102967800A (en) * | 2012-12-10 | 2013-03-13 | 辽宁省电力有限公司沈阳供电公司 | Method and device for positioning single-phase ground fault section of power distribution network based on transient signal prony algorithm |
| CN104917293A (en) * | 2015-05-19 | 2015-09-16 | 中国南方电网有限责任公司 | Topological mapping method for secondary virtual and physical links of intelligent substation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105429803A (en) | 2016-03-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105429803B (en) | Quadratic Imaginary loop fault localization method based on fault zone Difference formula reasoning | |
| CN108304942B (en) | Intelligent processing method and system for secondary system abnormity of intelligent substation | |
| CN106771883A (en) | A kind of multi-source information distribution fault localization method and system based on cloud | |
| CN107332347B (en) | Intelligent substation secondary intelligence Computer Aided Design platform | |
| CN102035202B (en) | Network reconfiguration system | |
| CN103679556B (en) | The intelligent diagnosing method of distribution transformer terminals power failure alarm | |
| CN112910089A (en) | Transformer substation secondary equipment fault logic visualization method and system | |
| US20080183406A1 (en) | Online IED Fault Diagnosis Device and Method for Substation Automation System Based on IEC61850 | |
| CN105529831B (en) | A kind of secondary equipment of intelligent converting station failure Computer Aided Analysis System | |
| CN109687589B (en) | Intelligent substation secondary circuit fault diagnosis method | |
| CN209545248U (en) | A kind of intelligent Substation System of visualized O&M | |
| CN103915898B (en) | A kind of O&M method of intelligent substation network | |
| CN102403798A (en) | Intelligent automatic transformer district monitoring method and system based on GIS (geographical information system) | |
| CN108616405A (en) | The Fault Locating Method and device in a kind of intelligent substation void circuit | |
| CN104880629B (en) | The remote diagnosis method of dispatching terminal protection element action behavior | |
| CN207196815U (en) | A kind of central air-conditioning fault diagnosis system based on cloud data | |
| CN103986238B (en) | Intelligent substation fault diagnosis method based on probability weighting bipartite graph method | |
| CN102723775A (en) | Reliability assessment method for secondary system of intelligent substation | |
| CN105573283B (en) | The foundation in substation equipment function association storehouse and the filter method of event correlation information group | |
| CN111948489B (en) | Intelligent substation secondary equipment board card level abnormal defect diagnosis positioning method and system | |
| CN107644304A (en) | A kind of intelligent substation secondary network equipment data holographic analysis shows method | |
| CN110865263A (en) | Intelligent substation virtual test method based on minimum test system | |
| CN104281976A (en) | Power secondary system reliability assessment information processing method | |
| CN102281103B (en) | Optical network multi-fault recovering method based on fuzzy set calculation | |
| CN111864902A (en) | Intelligent substation secondary equipment fault comprehensive analysis system based on big data |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |